Objectives:
The aim of the study was to develop the Polish version of the Reasons for Living Inventory (RFL-48) of Linehan et al. The questionnaire is a self-descriptive tool designed to measure six factors protecting against committing suicide: “Survival and Coping Beliefs”, “Responsibility to Family”, “Fear of Suicide”, “Moral Objections”, “Fear of Social Disapproval”, “Child-Related Concerns”. The original version of the method was characterized by good psychometric properties.

Methods:
A sample of 431 adults (236 women and 195 men), aged 18–65 years (mean age was 33 years, SD = 11.33), was recruited as a non-clinical group from various regions of Poland. The Beck’s Depression Inventory, Suicide Behaviors Questionnaire-Revised and Positivity Scale were also used to evaluate the construct validity of the RFL-48.

Results:
Exploratory and confirmatory factor analysis supported an assumed six-dimensional structure of the questionnaire. Cronbach’s alpha ranged from 0.70 (“Fear of Suicide”) to 0.95 (“Survival and Coping Beliefs”) and amounted to 0.92 for the total score.

Conclusions:
The findings indicate that the Polish adaptation of the RFL questionnaire by Linehan et al. has good psychometric characteristics and can be used in both research and clinical practice.